43309324137 has 4 divisors (see below), whose sum is σ = 57745765520. Its totient is φ = 28872882756.

The previous prime is 43309324133. The next prime is 43309324171. The reversal of 43309324137 is 73142390334.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43309324137 - 2² = 43309324133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43309324095 and 43309324104.

It is not an unprimeable number, because it can be changed into a prime (43309324133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7218220687 + ... + 7218220692.

It is an arithmetic number, because the mean of its divisors is an integer number (14436441380).

Almost surely, 2^43309324137 is an apocalyptic number.

It is an amenable number.

43309324137 is a deficient number, since it is larger than the sum of its proper divisors (14436441383).

43309324137 is a wasteful number, since it uses less digits than its factorization.

43309324137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14436441382.

The product of its (nonzero) digits is 163296, while the sum is 39.

The spelling of 43309324137 in words is "forty-three billion, three hundred nine million, three hundred twenty-four thousand, one hundred thirty-seven".